Electromagnetic pump core

Abstract

The electromagnetic pump core comprises an axial core, a plurality of radial cores and a plurality of coils, the coils are located between the radial cores, and the coils comprise a plurality of coaxially nested sub-coils, a plurality of fixing rods are arranged between adjacent sub-coils, and the fixing rods are fixed to the radial cores. The electromagnetic pump core of the application replaces ceramic tiles with ceramic rods, thereby reducing the processing difficulty and cost. The ceramic rods are fixed to the radial cores, thereby indirectly fixing the sub-coils to the radial cores. The ceramic rods can fix the positions of the sub-coils, isolate adjacent sub-coils, expand the ventilation gap between the sub-coils, and prevent the electromagnetic pump core from being damaged during transportation and use, thereby greatly improving the reliability of the pump core.

Description

Technical Field

[0001] This invention relates to the field of electromagnetic pump technology, and more specifically to electromagnetic pump cores. Background Technology

[0002] Patent CN117526599B discloses a high-temperature resistant electromagnetic pump core, in which the coils inside the pump core are separated by aluminum nitride ceramic tiles with surrounding sleeves. However, such ceramic tiles are not only difficult to process and expensive, but also easily damaged during daily use, reducing the reliability of the electromagnetic pump. In addition, the lack of fixing points between the ceramic tiles and the radial iron core means that vibrations during the transport of the electromagnetic pump can easily cause coil deformation and displacement, which can also easily damage the ceramic tiles. Summary of the Invention

[0003] The purpose of this invention is to provide an electromagnetic pump core to solve the problems of high cost and low reliability of existing electromagnetic pumps.

[0004] To achieve the above-mentioned objectives, the technical solution of the present invention is as follows:

[0005] The electromagnetic pump core includes an axial iron core, several radial iron cores, and several coils. The coils are located between the radial iron cores and include several coaxially nested sub-coils. Adjacent sub-coils are connected by several fixing rods, which are fixed to the radial iron cores. The fixing rods are used to fix the position of the sub-coils and to separate adjacent sub-coils.

[0006] Furthermore, the radial core has holes, and the fixing rod is inserted into the holes of the radial core. These holes can be through holes, blind holes, or a combination of both. If it is a through hole, the middle portion of the fixing rod passes through the through hole, and the two ends of the fixing rod are located between adjacent sub-coils; if it is a blind hole, the end of the fixing rod is inserted into the blind hole, and the middle portion of the fixing rod is located between adjacent sub-coils; if the holes on the radial core are a combination of through holes and blind holes, for example, three adjacent radial cores, with the middle core having a through hole and the two sides having blind holes, then the middle portion of the fixing rod passes through the through hole of the middle core, and the two ends are fixed to the blind holes of the two side cores.

[0007] Furthermore, the fixing rod is made of insulating material, preferably an easy-to-process and low-cost ceramic rod, such as an aluminum nitride ceramic rod or a zirconia ceramic rod.

[0008] Furthermore, the two sides of the fixing rod are directly attached to the adjacent sub-coil, fixing the inner coil on the outside of the inner coil, and supporting and fixing the outer coil on the inside of the outer coil.

[0009] Furthermore, the fixing rod is perpendicular to the radial iron core.

[0010] Furthermore, the cross-section of the fixing rod is circular or polygonal, and the holes on the radial iron core are circular or polygonal corresponding to the cross-sectional shape of the fixing rod.

[0011] The beneficial technical effects of the present invention compared with the prior art are as follows:

[0012] The electromagnetic pump core of this invention uses a ceramic rod instead of ceramic tiles, reducing processing difficulty and cost. The ceramic rod is fixed on the radial iron core, indirectly fixing the sub-coil to the radial iron core. The ceramic rod can both fix the position of the sub-coil and isolate adjacent sub-coils, while also increasing the ventilation gap between the sub-coils, making the electromagnetic pump core less prone to damage during transportation and use, and greatly improving the reliability of the pump core. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the installation position of the fixing rod on the radial iron core in Embodiment 1 of the present invention.

[0014] Figure 2 This is a schematic diagram of the external overall structure of the electromagnetic pump core after assembly in Embodiment 1 of the present invention. Detailed implementation method:

[0015] The technical solution of the present invention will now be clearly and completely described in conjunction with the accompanying drawings and specific embodiments.

[0016] Example 1

[0017] like Figure 1 and 2 As shown, the electromagnetic pump core includes an axial iron core (not shown), several radial iron cores 1, and several coils 2. The radial iron cores 1 are fixed to the axial iron core and perpendicular to it, while the coils 2 are located between the radial iron cores (for specific installation, please refer to the scheme disclosed in patent CN117526599B). The coils 2 include several coaxially nested sub-coils 201, and several fixing rods 3 are provided between adjacent sub-coils 201. The fixing rods 3 are fixed to the radial iron cores 1 and are perpendicular to the radial iron cores 1.

[0018] The radial core 1 has a hole 101, and the fixing rod 3 is inserted into the hole 101 of the radial core 1. The hole 101 can be a through hole, a blind hole, or a combination of both. If it is a through hole, the middle part of the fixing rod passes through the through hole, and the two ends of the fixing rod are located between adjacent sub-coils; if it is a blind hole, the end of the fixing rod is inserted into the blind hole, and the middle part of the fixing rod is located between adjacent sub-coils; if the hole on the radial core is a combination of through hole and blind hole, for example, three adjacent radial cores, with the middle core having a through hole and the two sides having blind holes, then the middle part of the fixing rod passes through the through hole of the middle core, and the two ends are fixed in the blind holes of the two side cores. The form of the hole 101 is selected according to the size of the fixing rod actually used.

[0019] The fixing rod 3 is made of insulating material, preferably a zirconia ceramic rod that is not easily broken. The fixing rod 3 is located between the sub-coils 201, with both sides of the fixing rod directly attached to the adjacent sub-coils. It is fixed to the outside of the inner layer coil to fix the inner layer coil, and at the same time, it can support and fix the outer layer coil on the inside of the outer layer coil, thus fixing the position of the sub-coils and separating adjacent sub-coils.

[0020] The cross-section of the fixing rod 3 is circular or polygonal, and the hole on the radial iron core 1 is circular or polygonal, corresponding to the cross-sectional shape of the fixing rod. Different shapes of fixing rods can be selected according to the shape of the sub-coil 201 and the relative position of the fixing rod 3 and the sub-coil 3.

Claims

1. An electromagnetic pump core, comprising an axial iron core, several radial iron cores, and several coils, wherein the coils are located between the radial iron cores, characterized in that, The coil consists of several coaxially nested sub-coils, with several fixing rods between adjacent sub-coils, and the fixing rods are fixed to the radial iron core.

2. The electromagnetic pump core according to claim 1, characterized in that, The radial iron core has a hole, and the fixing rod is inserted into the hole of the radial iron core.

3. The electromagnetic pump core according to claim 2, characterized in that, The hole on the radial iron core is a through hole, the middle part of the fixing rod passes through the through hole, and the two ends of the fixing rod are located between adjacent sub-coils.

4. The electromagnetic pump core according to claim 2, characterized in that, The holes on the radial iron core are blind holes, the end of the fixing rod is inserted into the blind hole, and the middle part of the fixing rod is located between adjacent sub-coils.

5. The electromagnetic pump core according to claim 4, characterized in that, The blind holes on adjacent radial iron cores are opposite each other, and the two ends of the fixing rod are inserted into the opposite blind holes on adjacent radial iron cores.

6. The electromagnetic pump core according to claim 1, characterized in that, The fixing rod is made of insulating material.

7. The electromagnetic pump core according to claim 6, characterized in that, The fixing rod is made of zirconium oxide.

8. The electromagnetic pump core according to claim 1, characterized in that, The two sides of the fixing rod are respectively attached to the adjacent sub-coil.

9. The electromagnetic pump core according to any one of claims 1-8, characterized in that, The fixing rod is perpendicular to the radial iron core.

10. The electromagnetic pump core according to claim 9, characterized in that, The cross-section of the fixing rod is circular or polygonal.

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